255/75r17 too narrow?

[03EXPO4x4]

Just bought a 2003 expedition Eddie Bauer 4x4 has 17 inch stock rims and worn out 265/70r17s. I found a great deal on a set of Goodyear Mudd terrains for $200 but they are 255/75r17. I know they will be a little taller but will them being more narrow look dumb? Anyone have pics of this size on their ride? Thanks

 

[toms89]

Doubtful... most members go larger if anything.

Compare them side by side in the tire store if the have both sizes.

 

[03EXPO4x4]

I was just thinking they will look taller and just be a little bit narrower so should save on the mpg loss

 

[toms89]

265/70R17

Diameter = 31.6"
Width = 10.43"
Wheel = 17"
Sidewall = 7.3"
Circumference = 99.2"
Revs/Mile = 638.4

255/75R17

Diameter = 32.1"
Width = 10.04"
Wheel = 17"Sidewall = 7.53"
Circumference = 100.7"
Revs/Mile = 629.4

Your speedo will read 1.4% too low according to the revs per mile.

The difference is minor enough doubt you will see any change in mpg's.

 

[03EXPO4x4]

Are they so close you probably won't be able to tell a difference in the sizes?

 

[toms89]

Are they so close you probably won't be able to tell a difference in the sizes?

I would have to see them side by side to answer.

Like you said though... the 255's/75r17's will likely look taller and narrower since they actually are.

 

[03EXPO4x4]

I know a 285/70r17 will fit without rubbing but Do you know if a 285/75r17 terra grappler with stock rims will fit without rubbing?